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Hopp-rsk-owr01

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Linksys WRT3200ACM running OpenWRT, each partition will run a different VPN server for now. KISS!

Custom install

OpenVPN

Forum topics

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WireGuard

OpenWRT Wiki

OpenWrt Wiki You are hereHomeDocumentationUser guideAdditional servicesVPN (Virtual Private Network)WireGuardWireGuard server 

Learn about OpenWrt

WireGuard server This article relies on the following:

Accessing web interface / command-line interface Managing configs / packages / services / logs Introduction This how-to describes the method for setting up WireGuard server on OpenWrt. Follow WireGuard client for client setup and WireGuard extras for additional tuning. Goals Encrypt your internet connection to enforce security and privacy. Prevent traffic leaks and spoofing on the client side. Bypass regional restrictions using commercial providers. Escape client side content filters and internet censorship. Access your LAN services remotely without port forwarding. Command-line instructions 1. Preparation Install the required packages. Specify configuration parameters for VPN server.

  1. Install packages

opkg update opkg install wireguard-tools

  1. Configuration parameters

VPN_IF="vpn" VPN_PORT="51820" VPN_ADDR="192.168.9.1/24" VPN_ADDR6="fd00:9::1/64" 2. Key management Generate and exchange keys between server and client.

  1. Generate keys

umask go= wg genkey | tee wgserver.key | wg pubkey > wgserver.pub wg genkey | tee wgclient.key | wg pubkey > wgclient.pub wg genpsk > wgclient.psk

  1. Server private key

VPN_KEY="$(cat wgserver.key)"

  1. Pre-shared key

VPN_PSK="$(cat wgclient.psk)"

  1. Client public key

VPN_PUB="$(cat wgclient.pub)" 3. Firewall Consider VPN network as private. Assign VPN interface to LAN zone to minimize firewall setup. Allow access to VPN server from WAN zone.

  1. Configure firewall

uci rename firewall.@zone[0]="lan" uci rename firewall.@zone[1]="wan" uci del_list firewall.lan.network="${VPN_IF}" uci add_list firewall.lan.network="${VPN_IF}" uci -q delete firewall.wg uci set firewall.wg="rule" uci set firewall.wg.name="Allow-WireGuard" uci set firewall.wg.src="wan" uci set firewall.wg.dest_port="${VPN_PORT}" uci set firewall.wg.proto="udp" uci set firewall.wg.target="ACCEPT" uci commit firewall service firewall restart 4. Network Configure VPN interface and peers.

  1. Configure network

uci -q delete network.${VPN_IF} uci set network.${VPN_IF}="interface" uci set network.${VPN_IF}.proto="wireguard" uci set network.${VPN_IF}.private_key="${VPN_KEY}" uci set network.${VPN_IF}.listen_port="${VPN_PORT}" uci add_list network.${VPN_IF}.addresses="${VPN_ADDR}" uci add_list network.${VPN_IF}.addresses="${VPN_ADDR6}"

  1. Add VPN peers

uci -q delete network.wgclient uci set network.wgclient="wireguard_${VPN_IF}" uci set network.wgclient.public_key="${VPN_PUB}" uci set network.wgclient.preshared_key="${VPN_PSK}" uci add_list network.wgclient.allowed_ips="${VPN_ADDR%.*}.2/32" uci add_list network.wgclient.allowed_ips="${VPN_ADDR6%:*}:2/128" uci commit network service network restart LuCI Web Interface instructions 1. Installing packages Navigate to LuCI → System → Software and install the package luci-proto-wireguard.

Optionally install the package qrencode to allow creation of a QR code when creating a peer configuration for simple import onto a phone wireguard client.

2. Restarting services Navigate to LuCI → System → Startup → Initscripts and click on network → Restart.

3. Add WireGuard Network Interface To create a new WireGuard interface go to LuCI → Network → Interfaces → Add new interface...

Select WireGuard VPN from the Protocol dropdown menu. Name the interface wg0 (or whatever is preferred) Click on Create Interface to create it and open it for editing 4. Configure the WireGuard Network Interface In the open edit window of the interface configure the following:

Click on Generate new key pair to populate the private and public keys Listen port: 51820 or preferred port IP addresses: 10.0.0.1/24 or preferred internal VPN IPv4 address for the WireGuard server interface end of the VPN Save this configuration 5. Configure WireGuard Peers To create a new WireGuard peer configuration go to LuCI → Network → Interfaces → wg0 → Edit → Peers

Click on Add peer Click on Generate new key pair to populate the public and private key fields Allowed IPs: 10.0.0.10 or whatever other address you will assign to the client Endpoint port: 51820 Persistent Keep Alive: 25 Save Click on Edit for the peer just created

Click on Generate configuration... and under Connection endpoint select:

  • If connecting from a publicly accessible IPv4 address the router wan interface IPv4 address
  • If connecting from a publicly accessible IPv6 address the router wan interface IPv6 address
  • If using a publicly accessible hostname enter as a custom entry

To transfer the peer configuration to the client device either:

Use a Wireguard client on a phone / tablet that can scan the generated QR code or Copy and paste the generated configuration data into a device.conf file for import into a WireGuard client Once you have saved the changes to the wg0 interface, click Save & Apply on the Interfaces page, then Restart wg0. This is necessary for the new peer list to take effect. “Save & Apply” alone is not enough!

6. Configure Firewall for WireGuard traffic Go to LuCI → Network → Firewall → General Settings and under Zones add a new zone:

Name: WireguardVPN (or preferred name) Input: accept Output: accept Intra zone forward: accept Masquerading: checked MSS Clamping: checked Covered networks: wg0 Allow forward to destination zones: lan and wan Allow forward from source zones: lan Save Create rule to allow IPv4 & IPv6 traffic through from internet for connecting from client device using IPv4 (if router has public IPv4 address) or from client device using IPv6 (if router has public IPv6 address available).

Go to LuCI → Network → Firewall → Traffic Rules

Name: WireGuard-incoming (or preferred name) Protocol: UDP Source zone: wan Source address: -- add IP -- Source port: any Destination zone: Device Destination address: -- add IP-- Destination port: 51820 Action: accept Save, Save & apply Note: If only IPv4 is being used to connect to the WireGuard server the above firewall traffic rule could be replaced with a Port Forward rule instead.

If you have an upstream ISP router between the Openwrt router configured as a WireGuard server and the internet then port 51820 will also need to be opened up for IPv4/IPv6 traffic to the Openwrt router.

Testing Establish the VPN connection. Verify your routing with traceroute and traceroute6.

traceroute openwrt.org traceroute6 openwrt.org Check your IP and DNS provider.

ipleak.net dnsleaktest.com On router:

Go to LuCI > Status > Wireguard and look for peer device connected with an IPv4 or IPv6 address and with a recent handshake time Go to LuCI > Network > Diagnostics and ipv4 ping client device IP eg. 10.0.0.10 On client device depending on wireguard software:

Check transfer traffic for tx & rx Ping router internal lan IP Check public IP address in a browser – https://whatsmyip.com – should see public IP address of ISP for the router Troubleshooting Collect and analyze the following information.

  1. Restart services

service log restart; service network restart; sleep 10

  1. Log and status

logread -e vpn; netstat -l -n -p | grep -e "^udp\s.*\s-$"

  1. Runtime configuration

pgrep -f -a wg; wg show; wg showconf wg0 ip address show; ip route show table all ip rule show; ip -6 rule show; nft list ruleset

  1. Persistent configuration

uci show network; uci show firewall; crontab -l This website uses cookies. By using the website, you agree with storing cookies on your computer. Also you acknowledge that you have read and understand our Privacy Policy. If you do not agree leave the website.More information about cookies 

Last modified: 2025/10/05 00:14by alex_henrie

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